JPanel + ActionListener

package swing;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;


public class SWING {
    private JFrame frame;
    private JPanel panel;
    private JLabel label;
    private JTextField textField;
    private JButton button;
    private JButton button1;

    public SWING(){
        label = new JLabel("Enter Your Name");
        textField = new JTextField(10);
        button = new JButton("OK");
        button1 = new JButton("Submit");

        panel = new JPanel();
        panel.add(label);
        panel.add(textField);
        panel.add(button);
        panel.add(button1);

        buttonPressed sPressed =new buttonPressed();

        button.addActionListener(sPressed);
        button1.addActionListener(sPressed);
        JFrame frame = new JFrame("App Title");
        frame.add(panel);

        frame.setSize(400, 300);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLocation(150, 150);
        frame.setVisible(true);
    }

    public class buttonPressed implements ActionListener{

        @Override
        public void actionPerformed(ActionEvent e) {
            String input = textField.getText().toString();
            JOptionPane.showMessageDialog(panel, "Hello "+input);
            System.out.println("Hello World "+e.getActionCommand());
        }

    }

    public static void main(String[] args) {
        SWING app = new SWING();
    }


}